For photovoltaic power stations, every additional kilowatt hour of electricity generated means more revenue per kilowatt hour of electricity. Many people believe that photovoltaic power stations of the same size should have the same power generation capacity. In fact, there are many determining factors. Lighting and environmental impact in the area Photovoltaic power stations rely on solar radiation to generate electricity. The greater the intensity of solar radiation, the higher the power generation capacity of the photovoltaic power station. Data show that more than 2/3 of the regions in my country have more than 2,000 hours of sunshine per year and are rich in solar energy resources. Depending on the latitude and the amount of solar radiation, the power generation capacity of the photovoltaic power station is determined. In addition to differences in solar energy resources, the humidity and temperature in various regions will affect the power generation of photovoltaic power stations. In particular, particulate matter in air pollution, also known as smog, can reduce photovoltaic power generation efficiency by more than 17%. According to calculations, in hazy cities, the power generation of photovoltaic power stations is obviously low. And when the haze is severe, photovoltaic power stations cannot even generate electricity. Quality factors of photovoltaic power plants Environmental problems are difficult to change, but a high-quality photovoltaic power station will definitely generate more electricity than a low-quality power station. Various devices, from silicon materials to components, and from components to inverters, all play a decisive role in power generation. Photovoltaic module quality As the core component of a photovoltaic power station, the quality of photovoltaic modules plays a decisive role in the power generation capacity of the power station. The quality of photovoltaic modules is ultimately linked to their service life and efficiency. First of all, the photoelectric conversion efficiency of photovoltaic modules represents the power generation capacity of the module, so the higher the efficiency of the module, the higher the power generation capacity of the power station. In addition to efficiency, the quality of photovoltaic modules is more reflected in various aspects such as anti-attenuation and anti-aging. Inferior photovoltaic modules are prone to problems such as cracks and backplane aging. Once such problems occur, the efficiency of the photovoltaic modules will drop significantly, resulting in low power generation of the power station. What's more, it is also very important that many power station users do not understand the operating principles of photovoltaic power stations and use them as boards to dry things, such as quilts, shoes, dried food, and peppers... This will block the components and affect the conversion of solar energy into current. If it is small, it will reduce the income of power generation; if it is ...

Original high-tech lithium battery Market data shows that from January to February 2024, among China's power battery exports, the export volume of lithium iron phosphate batteries reached 7.5GWh, accounting for 45%. Among them, in January, the export proportion of LiFePO4 batteries reached 50.5%. Compared with the data in 2023, China's lithium iron phosphate battery exports accounted for 30% overall, and the export proportion of lithium iron phosphate batteries in 2024 has increased significantly. Behind this is the result of Chinese battery manufacturers’ continued breakthroughs in overseas markets. What can also be verified by data is that according to the ranking of power battery market share in non-China regions in January 2024 released by the Korean Statistics Agency, CATL continues to maintain its leading position with a market share of 5.7GWh. BYD, which focuses on lithium iron phosphate battery products, has experienced significant growth. Its power battery shipments in overseas markets have increased from 0.3GWh in January 2023 to 1.2GWh in January 2024, a year-on-year increase 261.7%. In recent years, driven by the innovation of domestic battery companies' material systems and structural systems, lithium iron phosphate battery technology has always been the advantage of domestic battery companies. The success of lithium iron phosphate batteries in the domestic new energy market, especially in terms of cost structure, has driven electric vehicles to have "the same price of oil and electricity" or even "lower electricity than oil", making China's lithium iron phosphate technology move from domestic to overseas and gradually change International car companies and battery manufacturers have stereotypes about lithium iron phosphate batteries. In recent years, car companies such as Tesla, Volkswagen, General Motors, Ford, and Northvolt have been increasing the installed capacity of lithium iron phosphate batteries. Traditional international ternary battery giants Samsung SDI, LGES, and SK On have also successively announced the addition of lithium iron phosphate batteries. Plan for battery production line. Among them, LGES recently signed an order for 160,000 tons of lithium iron phosphate cathode materials with Longpan Technology. The emergence of China's first overseas large order for lithium iron phosphate cathode materials marks the official expansion of China's lithium iron phosphate material supply system overseas. From the perspective of market demand, the domestic market structure has formed a market pattern of 30% to 70% for ternary and iron-lithium, and the international market is also accelerating the shift from ternary to iron-lithium. According to the time when overseas lithium iron phosphate batteries are put into production, the battery factory jointly owned by Ford and CATL, South Korea's three major battery companies LGES, SK On, and Samsung SDI will mostly produce lithium iron phosphate batteries in 2026 or even later. As ov...

When doing household photovoltaic system promotion, people often ask, does the electricity generated by photovoltaic need to be stored? How do you use electricity at night? To understand these problems, we need to understand the concepts of on-grid system and off-grid system. 1. Grid-connected system. The grid-connected system requires the photovoltaic system to be connected to the power grid, and the grid-connected system can be divided into "self-use, surplus electricity online" mode and "full Internet access" mode. Residential grid-connected power generation system is the installation of solar modules on the roof of residents, the system is connected to the grid, and the power supply task is shared. In the case that the amount of sunlight radiation reaches the power generation requirements, the inverter in the system converts the direct current generated by the photovoltaic power generation system into alternating current, which directly supplies power to the residential household load, and the insufficient part is supplemented by the municipal power supply, and the photovoltaic power generation is greater than the residential household electricity consumption, the remaining power is incorporated into the grid. This is the so-called "spontaneous self-use, surplus electricity online" mode. Users can also choose to directly integrate all the power generated by the photovoltaic system into the grid. All the electricity needed for household load is supplied directly by the grid. This is the "full access" model. Characteristics of grid-connected system: 1) Connect to the power grid, and upload part or all of the electricity to the power grid. 2) Power grid outage, photovoltaic power generation also stopped. Because the inverter has anti-island, that is, the power grid company requires: power grid power failure, photovoltaic power must also be immediately cut off. The main concern is safety. 3) Residents still rely on mains electricity at night. 4) No energy storage device. Therefore, the grid-connected power generation system needs to rely on the grid, and the generated energy is transmitted to the grid, which does not need to be stored. At night, we still rely on the grid, on the mains. 2. Off-grid system. Principle and composition of off-grid system. The working principle of the off-grid power generation system is very similar to that of the grid-connected power generation system, except that the power of the off-grid system is not transmitted to the public grid and is directly consumed by the load. Taking into account the volatility of photovoltaic power generation, such as power generation during the day and no power generation at night, good sunny day power generation less or no power generation in rainy weather, residents off-grid power generation system needs to be equipped with batteries (groups). The off-grid solar power generation system consists of photovoltaic modules, controllers, inverters and batteries (groups). Through the understan...

New energy + new agriculture, one represents the future of green transformation and development, and the other represents the foundation of the national economy and people's livelihood. Photovoltaics have given new vitality to the most traditional agriculture. Photovoltaic agriculture refers to a business model in which agricultural management facilities (or units) are scientifically designed and rationally grafted with photovoltaics in order to achieve multiple uses in one land and increase unit land output during the practice of agricultural production. During the design, construction and operation of photovoltaic power stations, space necessary for agricultural planting and breeding should be reserved to ensure that while the photovoltaic power station generates electricity normally, it can meet the physiological needs of plants and animals, achieve the effects and benefits of agricultural and photovoltaic complementation, and achieve the integration and innovation of ecological agriculture and circular agriculture technology models provide strong technical support for sustainable agricultural development. "Photovoltaic + agriculture" is an emerging form of agriculture. It not only solves the problem of power supply required for water extraction and irrigation machinery, avoids the competition between the photovoltaic industry and agriculture for land, but also sells the excess electricity to the national grid. At present, there are four main modes of photovoltaic agriculture, namely photovoltaic planting, photovoltaic breeding, photovoltaic water conservancy, and photovoltaic cottages, which are divided into mushroom photovoltaic, fishery and photovoltaic complementary, vegetable (fruit) photovoltaic, livestock and poultry (pastoral) photovoltaic, Linguang, medicinal photovoltaics, ecological photovoltaics, water conservancy photovoltaics, etc.In the current wave of rapid development of the  photovoltaic industry, photovoltaic agriculture plays an important role and has broad development prospects. 1. Photovoltaic + Vegetable/Fruits Organically combine rooftop photovoltaic power generation with agricultural planting under the shed to drive the transformation and upgrading of the agricultural industry. In terms of crops, aerospace vegetables or shade-loving plants can be grown. This type of  project can also do some tourism agriculture.   2.Photovoltaic + Breeding industry Photovoltaic plus breeding industry can be used for free-range breeding or breeding sheds. It can breed sheep, pigs, chickens, dairy cattle, beef cattle, rabbits, etc. Most of them are herbivorous animals.   3.Photovoltaic + Fishery Utilizing the vast area of the fish pond, solar panels are installed on it to generate electricity. The photovoltaic modules are arranged three-dimensionally above the water surface, and aquaculture is carried out below.It is dual-purpose in one place, and the profit is significantly higher than that of pure aquaculture.At pre...